Schneider Electric A9F44263 Acti9 iC60N 2P 63A C MCB

Schneider Electric A9F44263 - Acti9 iC60N 2P 63A C-Curve MCB

The Schneider Electric A9F44263 is a 2-pole, 63A miniature circuit breaker from the Acti9 iC60N range, supplied with a C tripping curve. It protects distribution and sub-distribution circuits against both overload and short-circuit currents, and is dual-certified: 6000A Icn under IEC/EN 60898-1 and 10kA Icu at 415V under IEC/EN 60947-2.

At 63A this is the top current rating in the 2-pole iC60N range, which is why it is commonly specified as the incoming device on single-phase distribution boards as well as for heavy final circuits. Because it carries the 60947-2 industrial rating, it is acceptable in machine control panels and sub-boards where a purely 60898-rated domestic MCB would not be. It mounts on standard 35mm DIN rail and occupies two 18mm modules.

Quick Specs

• Manufacturer part number: A9F44263
• Range: Schneider Electric Acti9 iC60N
• Poles: 2P (two protected poles)
• Rated current: 63A
• Tripping curve: C (5 to 10 times In)
• Breaking capacity: 6000A Icn to IEC/EN 60898-1; 10kA Icu at 415V to IEC/EN 60947-2
• Trip unit technology: thermal-magnetic
• Rated voltage: 240/415V AC
• Rated frequency: 50/60 Hz
• Endurance: 20,000 mechanical cycles / 10,000 electrical cycles
• Mounting: 35mm DIN rail, 2 modules (36mm)
• Genuine Schneider Electric stock held in Dubai with VAT invoice on every order

Breaking Capacity by System Voltage

Icu under IEC/EN 60947-2 is voltage-dependent. Designers working at 240V single-phase have significantly more headroom than the headline 415V figure suggests, which matters when coordinating with an upstream device.

• 36 kA Icu at 12 to 133 V AC, 50/60 Hz
• 20 kA Icu at 220 to 240 V AC, 50/60 Hz
• 10 kA Icu at 380 to 415 V AC, 50/60 Hz
• 6 kA Icu at 440 V AC, 50/60 Hz
• 10 kA Icu at up to 125 V DC
• 6 kA Icu at 100 to 133 V DC
• 6000 A Icn at 415 V AC, 50/60 Hz, conforming to IEC/EN 60898-1

Applications and Compatibility

• Incoming device on single-phase distribution boards where overcurrent protection is required at the origin.
• Heavy final circuits such as sub-main feeds, water heaters, and air-conditioning units.
• Sub-distribution and machine control panels requiring IEC 60947-2 industrial isolation.
• C curve suits loads with moderate inrush including small motors, transformers, and lighting banks.
• Accepts Vigi iC60 add-on residual current modules to form an RCBO assembly at 30mA or 300mA.
• Accepts Acti9 auxiliary contacts, fault-signal contacts, shunt trips and RCA remote-control units.
• Compatible with Acti9 comb busbar systems for multi-way board assembly.

Why Buy From Electrical Junction

• Genuine Schneider Electric product from our Dubai stock, not grey-market or refurbished.
• We publish the full voltage-dependent breaking capacity table rather than a single headline figure, so you can coordinate the device properly at design stage.
• Vigi module, auxiliary and busbar compatibility is checked by our engineer before despatch.
• Direct sourcing pipeline through our Mumbai arm, MAS Global Enterprises, into India, China and Europe, which keeps restocking fast on volume Acti9 orders.
• Trade counter in Deira, Dubai for walk-in collection and physical verification before purchase.

Frequently Asked Questions

Is the A9F44263 a 6kA or a 10kA breaker?

Both figures are correct, under different standards. The A9F44263 is rated 6000A Icn at 415V AC under IEC/EN 60898-1, and 10kA Icu at 380 to 415V AC under IEC/EN 60947-2. If your panel specification calls up 60947-2 industrial isolation, quote the 10kA figure.

What is the breaking capacity at other system voltages?

Icu under IEC/EN 60947-2 rises as system voltage falls: 36kA at 12 to 133V AC, 20kA at 220 to 240V AC, 10kA at 380 to 415V AC, and 6kA at 440V AC. On DC systems it is 10kA up to 125V DC and 6kA at 100 to 133V DC. Designers working at 240V single-phase therefore have 20kA available, not 10kA.

Can I use the A9F44263 as the main incomer in a single-phase board?

Yes, provided the board design coordinates correctly with the upstream device. At 63A this is the top rating in the 2-pole iC60N range and is routinely specified as a single-phase incomer. If the duty is isolation and switching only, with no overcurrent protection required at that point, an Acti9 iSW switch disconnector is the correct device instead.

What does the C curve mean and when should I use it instead of B or D?

A C curve trips magnetically at 5 to 10 times rated current, which is the general-purpose choice for mixed loads with moderate inrush such as lighting banks, small motors and transformers. Use a B curve (3 to 5 times In) for purely resistive circuits and long cable runs where fault current is low, and a D curve (10 to 20 times In) for high-inrush loads like large motors and welding sets.

Can I add an RCD to this MCB?

Yes. The Acti9 iC60 platform accepts clip-on Vigi iC60 residual current modules, which convert the MCB into an RCBO assembly at your chosen sensitivity, typically 30mA or 300mA. The Vigi module must match the 2-pole configuration and the 63A rating, so confirm the reference with us before ordering rather than assuming a part number.

How much DIN rail width does the A9F44263 need?

Two 18mm modules, so 36mm of 35mm DIN rail.

How many operations is the A9F44263 rated for?

Up to 20,000 mechanical operating cycles and up to 10,000 electrical operating cycles.

Order or Request a Quote

For UAE orders and counter collection, contact our Dubai trade counter. For export, GCC and bulk-quantity enquiries, use the Global Inquiry button and your request goes straight to our engineering desk. Bulk pricing is available on carton and pallet quantities of Acti9 iC60N.